Thiago Marinho
AI Product Engineer from Brazil. 12+ years building scalable web, mobile, AI and Web3 systems — full-stack to production.
Engineering software that
ships and learns.
I'm an AI Product Engineer with 10+ years building production systems across healthcare, fintech, Web3, and event platforms. My north star is shipping software that does the work— not software that demos well.
These days I focus on agentic systems: LLM-powered workflows, RAG pipelines, AI Agents that orchestrate tools and humans, and the spec-driven engineering process that keeps them safe in production.
I shipped an event-management platform that processed R$6M in revenue on T3 Stack + Next.js + MongoDB Atlas, integrated with Woovi (PIX), Asaas (cards), Evolution API, and Inngest. I write at length on this blog about what I learn along the way.
40%
nurse onboarding lift
25%
mobile drop-off reduction
60%
faster SDK integration
99.9%
indexer accuracy
50k+
devs reached
1.1k+
GitHub followers
Selected highlights.
- May 2021 — Jan 2026·4y 9m
Software Engineer @ Popstand
Los Angeles, CA · Remote
- Built complete healthcare platform (API, Frontend, Mobile) serving thousands of patients
- Reduced mobile user drop-off by 25% via Branch.io deep linking optimization
- Developed NFT Marketplace on WAX blockchain with complex minting flows
- Established CI/CD pipelines reducing deployment time from hours to minutes
- Sep 2021 — Feb 2023·1y 6m
Full Stack Developer @ Unicrow
Zurich, Switzerland · Remote
- Built TypeScript SDK for Web3 escrow payments — 60% faster onboarding
- Created real-time blockchain indexer processing thousands of Ethereum txs
- Architected pipeline: Smart Contract → Indexer → PostgreSQL → GraphQL → FE
- Jun 2020 — Apr 2021·11m
Dev & Tech Writer @ Rocketseat
Brazil
- Created technical content reaching 50,000+ devs in the BR JS community
- Published deep dives on React, Node.js, and TypeScript best practices
- Mentored 100+ early-career developers through written guides